The repeated adaptation of oceanic threespine sticklebacks to fresh water has made it a
premier organism to study parallel evolution. These small fish have multiple distinct …

Speciation is the process by which barriers to gene flow evolve between populations.
Although we now know that speciation is largely driven by natural selection, knowledge of …

Molecular data have been used to date species divergences ever since they were described
as documents of evolutionary history in the 1960s. Yet, an inadequate fossil record and …

Similar forms often evolve repeatedly in nature, raising long-standing questions about the
underlying mechanisms. Here, we use repeated evolution in stickleback to identify a large …

The three-spined stickleback (Gasterosteus aculeatus) is an important model system for the
study of parallel evolution in the wild, having repeatedly colonized and adapted to …

The Gasterosteidae fish family hosts several species that are important models for eco-
evolutionary, genetic, and genomic research. In particular, a wealth of genetic and genomic …

Population genetic theory predicts that small effective population sizes (N e) and restricted
gene flow limit the potential for local adaptation. In particular, the probability of evolving …

Mouse lemurs (Microcebus) are a radiation of morphologically cryptic primates distributed
throughout Madagascar for which the number of recognized species has exploded in the …

Species delimitation studies based on integrating different datasets such as genomic,
morphometric, and cytogenetics data are rare in studies focused on Neotropical rodents. As …

Invasive species can be powerful models for studying contemporary evolution in natural
environments. As invading organisms often encounter new habitats during colonization, they …